Rex Weyler was a director of the original Greenpeace Foundation, the editor of the organisation's first newsletter, and a co-founder of Greenpeace International in 1979.

He was a photographer and reporter on the early Greenpeace whale and seal campaigns, and has written one of the best and most comprehensive histories of the organisation, Greenpeace (Raincoast, 2004). His book, Blood of the Land, a history of the American Indian Movement, was nominated for a Pulitzer Prize.

Deep Green is Rex's monthly column, reflecting on the roots of activism, environmentalism, and Greenpeace's past, present, and future. The opinions here are his own.

You can respond to "Deep Green" columns at Rex's Ecolog, where he posts portions of his column and dialogues with readers.